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Finding the Fourth Proportional to 66,426,649.60, 99,639,974.40 and 23,344,499.20

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Solution

The fourth proportional to 66,426,649.60, 99,639,974.40 and 23,344,499.20 is: 35,016,748.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,426,649.60 : 99,639,974.40 = 23,344,499.20 : x
  2. Step 2: Convert to fraction form
    66,426,649.60/99,639,974.40 = 23,344,499.20/x
  3. Step 3: Cross multiply
    66,426,649.60x = 99,639,974.40 × 23,344,499.20
  4. Step 4: Simplify right side
    66,426,649.60x = 2,326,045,302,668,820.50
  5. Step 5: Solve for x
    x = 2,326,045,302,668,820.50/66,426,649.60
  6. Step 6: Final answer
    x = 35,016,748.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.